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本文介绍用国产集成双差分放大器研制的一种双平衡调制器,并对结果进行了理论分析。载频:1.75MHz;调制频率:1.2kHz±300Hz;载波抑制:≥50dB;杂波抑制≥40dB。该调制器制作、调试简便。
This paper introduces a double balanced modulator developed by a domestic integrated double differential amplifier, and the theoretical analysis of the results is given. Carrier frequency: 1.75MHz; Modulation frequency: 1.2kHz ± 300Hz; Carrier suppression: ≥ 50dB; Clutter suppression ≥ 40dB. The modulator production, commissioning simple.